Cross-coupling reactions of unprotected halopurine bases, nucleosides, nucleotides and nucleoside triphosphates with 4-boronophenylalanine in water. Synthesis of (purin-8-yl)- and (purin-6-yl)phenylalanines

被引:121
作者
Capek, Petr [1 ]
Pohl, Radek [1 ]
Hocek, Michal [1 ]
机构
[1] Acad Sci Czech Republ, Inst Organ Chem & Biochem, Ctr New Antivirals & Antineoplast, CZ-16610 Prague 6, Czech Republic
关键词
D O I
10.1039/b604010a
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An expeditious and highly efficient single-step methodology for the introduction of a phenylalanine moiety into position 8 and 6 of the purine scaffold was developed based on aqueous-phase Pd-catalysed Suzuki - Miyaura cross-coupling reactions of unprotected 4-boronophenylalanine with 8-bromo- or 6-chloropurines. The scope of the methodology was demonstrated by syntheses of unprotected (adenin-8-yl) phenylalanine base, nucleosides, nucleotides and nucleoside triphosphates as well as (purin-6-yl) phenylalanine base and nucleosides. All these products were obtained in high yields and in optically pure form.
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页码:2278 / 2284
页数:7
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